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A gas has a pressure of 4.82035 atm when its volume is 2.75 L. What will the pressure be when the volume is changed to 1.91015 L,assuming constant temperature? Express the final pressure in torr.
Assume that an incorrectly adjusted lawn mower is operated in a garage such that the combustion reaction in the engine is:
N2O4(g) + KCl(s) → NOCl(g) + KNO3(s) Find out oxidation number of each and find which one is reduced and which one is oxidized by Using oxidation number concept? Also write net ionic equation and ionic equation.
how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?
If 200 mL of 0.300 M Cr(NO3)3(aq) is added to 100 mL of 4.0 × 10^-4 M NaF(aq) at 25 degrees celcius, will a CrF3 precipitate form? For CrF3 in water at 25°C, Ksp = 6.6 × 10^-11.
In the bromination of ethane (C2H6) reaction, one wants to produce 10.0 g of C2H5Br product. How many grams of C2H6 would be needed to react with excess Br2.
Determine the mass of the steel bar If the final temperature of the system reached to 21.0 degree celsius?
What is the density of a block of marble that occupies 251cm^3 and has a mass of 623g?" answer in units g/cm^3
Typical rate of deposit of dust (dustfall) from unpolluted air was reported as 10 tons per square mile per month. Express this dustfall in milligrams per square meter per hour.
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
How much heat (in kJ) is evolved in converting 1.00 of steam at 150.0 to ice at -55.0? The heat capacity of steam is 2.01 and of ice is 2.09.
A saturated solution of Na2SO4 with excess of the solid is present in equilibrium with its vapor in a closed vessel. Calculate the number of degrees of freedom, f, of the system.
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